In the last five years alone, there have been four video game adaptations of the Warhammer 40,000 spin-off, Space Hulk. Plenty of chances to get it right, you d think, though the first three attempts suggest otherwise. And here comes Space Hulk: Tactics, once again throwing gruesome Genestealers against stompy Terminators in derelict spaceship corridors. It s not quite a combo-breaker, but it gets very close.